KOSO PRF404 Air Filter Pressure Regulator for Pneumatic Valve Positioners
The KOSO PRF404 Air Filter Pressure Regulator is designed for reliable compressed air filtration and accurate pressure regulation in industrial pneumatic control systems.
- Pressure Reducing Regulator Valve Type
- 400 kPa (4 Bar / Approximately 60 psi) Maximum Outlet Pressure Setting
- Adjustable Downstream Pressure Regulation Control Type
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- Technical supportTalk to an engineer
- 1 YearWarranty
Product Overview
The KOSO PRF404 Air Filter Pressure Regulator is designed for reliable compressed air filtration and accurate pressure regulation in industrial pneumatic control systems. Part of the KOSO PRF400 series, this air-set regulator combines air filtration and pressure reduction in a compact unit to deliver clean, regulated instrument air to pneumatic valve positioners and actuators. With a maximum adjustable outlet pressure setting of 400 kPa (4 bar), it helps maintain stable pneumatic supply conditions, supporting consistent valve positioning and dependable industrial process performance.
Manufactured by KOSO, the PRF404 features a mechanical pressure-regulating mechanism with an integrated air filter to help prevent solid contaminants from entering sensitive pneumatic instrumentation. Its adjustable pressure setting allows the air supply to be matched to compatible valve positioners and control equipment. Designed for industrial instrumentation and automated valve assemblies, this regulator is suitable for manufacturing, chemical processing, oil and gas facilities, power generation, and industrial pneumatic control applications.
Technical Specifications
|
Specification |
Value |
|---|---|
|
Product Name |
Air Filter Pressure Regulator |
|
Brand |
KOSO |
|
Manufacturer |
Nihon KOSO |
|
Model |
PRF404 |
|
Series |
PRF400 |
|
Product Type |
Pneumatic Air Filter Regulator |
|
Valve Type |
Pressure Reducing Regulator |
|
Structure |
Integrated Filter and Pressure Regulator |
|
Operating Principle |
Mechanical Pressure Regulation |
|
Control Type |
Adjustable Downstream Pressure Regulation |
|
Power Source |
Pneumatic / Mechanical |
|
Maximum Outlet Pressure Setting |
400 kPa (4 Bar / Approximately 60 psi) |
|
Air Connection Options |
Rc 1/4, 1/4 Inch NPT |
|
Filtration Function |
Integrated Instrument Air Filtration |
|
Pressure Adjustment |
Adjustable |
|
Working Medium |
Compressed Instrument Air |
|
Installation Application |
Pneumatic Valve Positioners and Actuators |
|
Control Function |
Instrument Air Pressure Regulation |
|
Related Models |
PRF402, PRF408 |
|
Application Scope |
Industrial Pneumatic Pressure Control Systems |
|
Condition |
New |
|
Warranty |
1 Year |
Key Features
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Reliable pressure reduction for maintaining consistent instrument air supply in industrial pneumatic systems.
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Maximum adjustable outlet pressure setting of 400 kPa (4 bar) for compatible pneumatic equipment.
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Integrated air filtration system helps remove solid contaminants from compressed instrument air.
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Mechanical pressure-regulating mechanism for dependable downstream pressure control.
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Adjustable pressure settings for matching the requirements of compatible valve positioners and actuators.
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Compact air-set design combines filtration and pressure regulation in one assembly.
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Supports stable pneumatic pressure delivery for accurate valve positioning.
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Available with Rc 1/4 or 1/4-inch NPT connection configurations within the PRF400 series.
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Suitable for integration into KOSO pneumatic valve positioner and actuator assemblies.
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Self-operated pressure regulation without requiring an external electrical power supply.
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Helps protect pneumatic instrumentation against contamination from the compressed air supply.
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Designed for industrial process automation and continuous pneumatic control applications.
Typical Applications
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KOSO pneumatic valve positioner air supply
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Industrial pneumatic pressure regulation systems
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Pneumatic control valve assemblies
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Instrument air filtration systems
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Oil and gas processing facilities
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Chemical and petrochemical plants
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Power generation and utility systems
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Water and wastewater treatment facilities
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Industrial manufacturing equipment
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Pneumatic actuator supply pressure control
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Industrial process instrumentation
-
Compressed air distribution systems
Shipping & Support
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Fast dispatch – Australia & Worldwide Shipping
-
Technical assistance available
-
1-year warranty
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